// Copyright (C) 2018-2021 Intel Corporation
// SPDX-License-Identifier: Apache-2.0
//

#pragma once

#include <memory>

#include "ngraph/op/util/unary_elementwise_arithmetic.hpp"

namespace ngraph {
namespace op {
namespace v0 {
/// \brief Elementwise inverse cosine (arccos) operation.
///
class NGRAPH_API Acos : public util::UnaryElementwiseArithmetic {
public:
    static constexpr NodeTypeInfo type_info{"Acos", 0};
    const NodeTypeInfo& get_type_info() const override {
        return type_info;
    }
    /// \brief Constructs an arccos operation.
    Acos() = default;
    /// \brief Constructs an arccos operation.
    ///
    /// \param arg Output that produces the input tensor.<br>
    /// `[d1, ...]`
    ///
    /// Output `[d1, ...]`
    ///
    Acos(const Output<Node>& arg);
    bool visit_attributes(AttributeVisitor&) override {
        return true;
    }
    std::shared_ptr<Node> clone_with_new_inputs(const OutputVector& new_args) const override;
    bool evaluate(const HostTensorVector& outputs, const HostTensorVector& inputs) const override;
    bool has_evaluate() const override;
};
}  // namespace v0
using v0::Acos;
}  // namespace op
}  // namespace ngraph
